Question

Add the following expressions:
(i) 3xyz + 4yz + 5zx; 7xz – 6yz + 4xyz and -9xyz – 11zy + 9xz

(ii) x3 – 2y3+ x; y3 – 2X^3 + y and -2y + 2y3 – 5x + 4x^3

(iii) If P = a2 – 2bc + ,b2 Q = -b2+ bc – c2 and R =c2 + cb + a2 then, find the value of P + Q + R.

PLEASE ANSWER QUICK

Answer 1

Answer:

A2

Step-by-step explanation:

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